Home / 398,389-860,162

Finding the Third Proportional to 398,389 and 860,162

Calculator

Solution

The third proportional to 398,389 and 860,162 is: 1,857,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,389 : 860,162 = 860,162 : x
  2. Step 2: Convert to fraction form
    398,389/860,162 = 860,162/x
  3. Step 3: Cross multiply
    398,389x = 860,162 × 860,162
  4. Step 4: Simplify right side
    398,389x = 739,878,666,244
  5. Step 5: Solve for x
    x = 739,878,666,244/398,389
  6. Step 6: Final answer
    x = 1,857,176.44

Related Problems

Find third proportional to 199,194.50 and 430,081
Half scale
Find third proportional to 796,778 and 1,720,324
Double scale
Find third proportional to 398,391 and 860,166
Similar ratio
Find third proportional to 597,583.50 and 1,290,243
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.